20122013221232 has 40 divisors (see below), whose sum is σ = 41986081104240. Its totient is φ = 9286922304000.

The previous prime is 20122013221223. The next prime is 20122013221237. The reversal of 20122013221232 is 23212231022102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20122013221198 and 20122013221207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122013221237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11658107 + ... + 13272357.

It is an arithmetic number, because the mean of its divisors is an integer number (1049652027606).

Almost surely, 2^{20122013221232} is an apocalyptic number.

It is an amenable number.

20122013221232 is an abundant number, since it is smaller than the sum of its proper divisors (21864067883008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20122013221232 is a wasteful number, since it uses less digits than its factorization.

20122013221232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1674201 (or 1674195 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 20122013221232 its reverse (23212231022102), we get a palindrome (43334244243334).

The spelling of 20122013221232 in words is "twenty trillion, one hundred twenty-two billion, thirteen million, two hundred twenty-one thousand, two hundred thirty-two".